A recycling device for plastic packaging bags

Abstract

The present invention relates to the field of plastic packaging bag processing, and specifically to a recycling device for plastic packaging bags, comprising a housing, a double-shaft pulverizing knife and a first pulverizing knife cleaning assembly, wherein the first pulverizing knife cleaning assembly comprises a fixed block, a slideway is provided on the fixed block, an outer cylinder is provided on the slideway, a circular shell is provided on the outer cylinder, and a push column is provided on the circular shell. A recycling device for plastic packaging bags of the present invention is provided with a double-shaft pulverizing knife and a fixed block on the housing, a slideway provided on the fixed block, an outer cylinder provided inside the slideway, a circular shell provided on the outer cylinder, a circular hole provided on the circular shell, and a push column slidably connected inside the circular hole. When the outer cylinder reciprocates and swings along the slideway, the circular shell and the push column can sequentially clean the debris attached to the radial blade of the double-shaft pulverizing knife, thereby maintaining the crushing performance of the double-shaft pulverizing knife.

Description

Technical Field

[0001] The invention relates to the technical field of plastic packaging bag processing, in particular to a plastic packaging bag recycling device. Background Art

[0002] As the global crude oil price continues to rise, the price of plastic products, as one of the petroleum derivatives, has naturally risen, and the recycling of waste plastics has also been given priority. Discarded plastic products are mostly packaging bags. After manual screening and classification, the discarded packaging bags must also go through processes such as crushing, granulation, and modification to become various transparent and opaque plastic particles, which are then classified according to their appearance and finally become recycled plastics that can be reused.

[0003] When discarded plastic packaging bags are recycled, they are crushed by a crusher, and the double-shaft crushing knife inside the crusher crushes the plastic packaging bags into strips, which are then processed again to complete recycling. When using some existing plastic packaging bag crushers, the bundled plastic packaging bags are first put into the crusher for crushing, and then crushed by the double-shaft crushing knife inside the crusher. The surface of the double-shaft crushing knife of the crusher will be attached with packaging bag debris, and some of the debris will stick to the crushing knife due to the pressure brought by the crushing knife. When the blade of the crushing knife is entangled with debris, the crushing degree of the subsequent plastic packaging bags by the crushing knife will be reduced, thereby easily reducing the efficiency of the crusher in crushing plastic packaging bags. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a plastic packaging bag recycling device to solve the problem that when debris adheres to the surface of the crushing knife of the above-mentioned crusher, the efficiency of the crushing knife in crushing the plastic packaging bag will be reduced.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A recycling device for plastic packaging bags, comprising:

[0007] A box body and a double-shaft pulverizing knife, wherein a first pulverizing knife cleaning assembly is installed inside the box body, and the first pulverizing knife cleaning assembly comprises a fixed block fixed on the inner wall of the box body, a slideway is provided on one side wall of the fixed block, an outer cylinder is slidably connected inside the slideway, one end of the outer cylinder is fixedly connected to a circular shell, a circular hole is provided on the circular shell, a push column is slidably connected inside the circular hole, the outer cylinder can slide back and forth along the slideway, and the outer cylinder in reciprocating sliding cooperates with the push column to sequentially clean the plastic packaging bag debris attached to the radial blade of the double-shaft pulverizing knife, and at the same time the outer cylinder can drive the circular shell to swing, clean the debris at the angle of the blade and throw off the debris attached to itself;

[0008] The inner wall of the fixed block is rotatably connected with a rotating shaft, a reciprocating sliding groove group is provided on the rotating shaft, and the reciprocating sliding groove group is composed of a plurality of reciprocating sliding grooves, and a sliding ring is slidably connected to each of the plurality of reciprocating sliding grooves, the inner bottom wall of the fixed block is slidably connected with a supporting plate, and the top of the supporting plate is slidably connected to the inner top wall of the fixed block, a supporting arm is fixed between the supporting plate and the sliding ring, a circular hole is provided in the middle of the supporting plate, and the outer cylinder is rotatably connected to the inner wall of the circular hole;

[0009] The inner wall of the outer cylinder is rotatably connected to the limiting shaft, and one end of the limiting shaft is rotatably connected to the inner wall of the circular shell, an extrusion block is fixed on the outer surface of the limiting shaft, which is used to push the push column through the pushing block, a first gear ring is fixed on the outer surface of the outer cylinder, a plurality of first racks and a second rack are fixed on the inner top wall of the fixed block, and the first gear ring is meshed and connected with the first rack, and the first gear ring cooperates with the first rack to drive the outer cylinder to rotate, thereby driving the circular shell to swing, and scraping the debris at the angle of the blade of the double-axis crushing knife;

[0010] A second chopping blade cleaning assembly, which is mounted on the housing and is used to clean debris between two axially adjacent blades of the double-shaft chopping blade;

[0011] The second crushing knife cleaning assembly includes an inner ring fixed on the outer wall of the fixed block, the outer wall of the inner ring is slidably connected to the outer ring, a plurality of cleaning strips are fixed to the outer wall of the outer ring, and the distances between the plurality of cleaning strips are equal, two fixed plates are fixed to the top of the fixed block, a driving shaft is rotatably connected between the two fixed plates, an outer tooth ring is fixed to the outer surface of the driving shaft, inner teeth are fixed to the inner wall of the outer ring, and the inner teeth are meshed with the outer tooth ring.

[0012] Preferably, a push block is fixed to one end of the push column, and a first return spring is fixed between one side of the push block and the inner wall of the circular shell.

[0013] Preferably, a second toothed ring is fixed to the outer surface of the limiting shaft, and the second rack is meshingly connected with the second toothed ring. The second toothed ring cooperates with the second rack to drive the limiting shaft to rotate, thereby facilitating pushing the push rod out of the circular shell to scrape off the plastic packaging bag debris.

[0014] Preferably, two triangular plates are fixed to the side of the fixed block facing the dual-axis crushing knife, and the two triangular plates are symmetrical with the outer cylinder as the center, and the slide of the fixed block is located between the two triangular plates, the inclined surface of the triangular plate at the top of the fixed block faces upward, and the inclined surface of the triangular plate at the bottom of the fixed block faces downward.

[0015] Preferably, a driving assembly is installed on the box body, which can drive the first crushing knife cleaning assembly and the second crushing knife cleaning assembly to clean the plastic packaging bag debris attached to the double-shaft crushing knife.

[0016] Preferably, the driving assembly includes a protective shell fixed to the outer wall of the box body, a driving source is installed on the protective shell, the inner wall of the protective shell is rotatably connected to two first gear shafts and a third gear shaft, one end of the two first gear shafts passes through the box body and is fixed on one end of the corresponding double-axis crushing knife, the first gear shaft is used to drive the double-axis crushing knife to rotate, thereby crushing the plastic packaging bag, a second gear shaft is arranged between the two first gear shafts, and the output end of the driving source passes through the protective shell and is fixed to one end of the second gear shaft, one end of the second gear shaft is rotatably connected to the outer wall of the box body, a first transmission belt is installed between one of the first gear shafts and the second gear shaft, the outer surface of the first transmission belt is installed with transmission teeth, and the other first gear shaft is meshed with the transmission teeth.

[0017] Preferably, one end of the two third gear shafts pass through the box and the fixed block and are fixed to one end of the corresponding rotating shaft, a second synchronous belt is fixed between the third gear shaft and the adjacent first gear shaft, a third gear ring is installed on the outer surface of the driving shaft, a fourth gear ring is installed on the outer surface of the limiting shaft, and a third synchronous belt is installed between the third gear ring and the fourth gear ring.

[0018] The beneficial effects of the present invention are:

[0019] 1. Through the double-axis crushing knife and the fixed block arranged on the box body, the slideway opened on the fixed block, the outer cylinder arranged inside the slideway, the circular shell arranged on the outer cylinder, the circular hole opened on the circular shell, and the push column slidably connected inside the circular hole, when the outer cylinder reciprocates and swings along the slideway, the circular shell and the push column can sequentially clean the debris attached to the radial blade of the double-axis crushing knife, thereby maintaining the crushing performance of the double-axis crushing knife.

[0020] 2. The second crushing blade cleaning assembly arranged on the box body can clean the debris in the gap between two axially adjacent blades of the double-axis crushing blade, and at the same time can clean the debris pushed out by the circular shell, thereby maintaining the crushing performance of the double-axis crushing blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the structure of the driving assembly of the present invention.

[0023] Figure 3 It is a structural schematic diagram of the first three-dimensional cross section of the box body of the present invention.

[0024] Figure 4 It is a schematic structural diagram of the fixing block of the present invention.

[0025] Figure 5 It is a schematic structural diagram of the circular shell of the present invention.

[0026] Figure 6 It is a schematic structural diagram of the inner ring of the present invention.

[0027] Figure 7 It is a structural schematic diagram of the rotating shaft of the present invention.

[0028] Figure 8 It is a schematic structural diagram of the first crushing knife cleaning assembly of the present invention.

[0029] Fig. 9 It is a schematic structural diagram of the second crushing knife cleaning assembly of the present invention.

[0030] In the figure:

[0031] 10. Box body; 11. Double-shaft crushing blade;

[0032] 20. First crushing blade cleaning assembly; 21. Fixed block; 22. Rotating shaft; 23. Reciprocating sliding groove group; 24. Sliding ring; 25. Support plate; 26. Outer cylinder; 27. Round shell; 29. ​​Push column; 210. Push block; 211. First return spring; 212. Limiting shaft; 213. Extrusion block; 214. First gear ring; 215. First rack; 216. Second gear ring; 217. Second rack; 218. Triangular plate;

[0033] 30. Second crushing blade cleaning assembly; 31. Inner ring; 32. Outer ring; 33. Cleaning strip; 34. Fixing plate; 35. Inner teeth; 36. Driving shaft; 37. Outer gear ring;

[0034] 40. Drive assembly; 41. Protective shell; 42. Drive source; 43. First gear shaft; 44. Second gear shaft; 45. First transmission belt; 46. Transmission teeth; 47. Third gear shaft; 48. Second synchronous belt; 49. Third gear ring; 410. Fourth gear ring; 411. Third synchronous belt. DETAILED DESCRIPTION

[0035] The following will refer to the attached Figures 1 to 9 The embodiments of the present invention are described in detail. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0036] A recycling device for plastic packaging bags, such as Figure 1-Figure 9 As shown, including:

[0037] A box body 10 is provided with two double-shaft crushing knives 11 installed inside the box body 10, and the two double-shaft crushing knives 11 are symmetrically installed inside the box body 10, and the two double-shaft crushing knives 11 rotate in opposite directions, and are used to crush plastic packaging bags, so as to facilitate subsequent processing of the plastic packaging bags. A first crushing knife cleaning component 20 and a second crushing knife cleaning component 30 are provided on the box body 10. The first crushing knife cleaning component 20 cooperates with the second crushing knife cleaning component 30 to clean the plastic packaging bag debris attached to the double-shaft crushing knife 11, thereby maintaining the crushing performance of the double-shaft crushing knife 11.

[0038] The first crushing knife cleaning assembly 20 includes two fixed blocks 21 fixed on the inner wall of the box body 10, and the two fixed blocks 21 are symmetrically arranged inside the box body 10, and the two double-axis crushing knives 11 are both located between the two fixed blocks 21, and the fixed block 21 has a slideway on the side facing the double-axis crushing knife 11, and the inner wall of the fixed block 21 is rotatably connected with a rotating shaft 22, and a reciprocating sliding groove group 23 is provided on the rotating shaft 22, and the reciprocating sliding groove group 23 is composed of a plurality of reciprocating sliding grooves, and a sliding ring 24 is slidably connected to the plurality of reciprocating sliding grooves, and the reciprocating sliding groove is used to limit the sliding ring 24, so as to facilitate the sliding ring 24 to slide back and forth along the axis of the rotating shaft 22, and the inner bottom wall of the fixed block 21 is slidably connected with a support plate 25, and the top of the support plate 25 is slidably connected to the inner top wall of the fixed block 21.

[0039] A support arm is fixed between the support plate 25 and the sliding ring 24 for supporting the support plate 25, so that the sliding ring 24 can drive the support plate 25 to slide. A circular hole is provided in the middle of the support plate 25, and an outer cylinder 26 is rotatably connected to the inner wall of the circular hole. One end of the outer cylinder 26 away from the sliding ring 24 is fixedly connected to a circular shell 27. The circular shell 27 can push the debris at the blade angle of the double-axis crushing knife 11, so as to maintain the crushing performance of the double-axis crushing knife 11. Two circular holes are provided at the bottom of the circular shell 27, and the two circular holes are symmetrically arranged on the circular On the outer surface of the circular shell 27, the insides of the two circular holes are slidably connected with push columns 29, which are used to scrape the debris at the angle of the blade of the double-axis crushing knife 11, so as to maintain the crushing performance of the double-axis crushing knife 11. A push block 210 is fixed at one end of the push column 29 located inside the circular shell 27, and a first return spring 211 is fixed between one side of the push block 210 and the inner wall of the circular shell 27, and the push column 29 is located inside the first return spring 211. The first return spring 211 is used to support the push block 210, so as to facilitate the reset of the push block 210.

[0040] The inner wall of the outer cylinder 26 is rotatably connected to the limit shaft 212, and one end of the limit shaft 212 is rotatably connected to the inner wall of the circular shell 27. The outer surface of the limit shaft 212 is fixed with an extrusion block 213, which is used to push the push column 29 through the push block 210, so that the push column 29 can scrape the debris at the angle of the blade of the double-axis crushing knife 11. The outer surface of the outer cylinder 26 is fixed with a first toothed ring 214, and the inner top wall of the fixed block 21 is fixed with a plurality of first racks 215 and a second rack 217. The first toothed ring 214 is meshed with the first rack 215, and the number of the first toothed rings 214 is the same as the number of the first racks 215. The first toothed ring 214 cooperates with the first rack 215 to drive the outer cylinder 26 to rotate, thereby driving the circular shell 27 to swing and scraping the debris at the angle of the blade of the double-axis crushing knife 11.

[0041] A second toothed ring 216 is fixed to the outer surface of the limiting shaft 212, and the number of second racks 217 is the same as the number of second toothed rings 216, and the second racks 217 are meshed and connected with the second toothed ring 216. The second toothed ring 216 cooperates with the second rack 217 to drive the limiting shaft 212 to rotate, thereby facilitating the pushing column 29 to be pushed out of the circular shell 27 to scrape the plastic packaging bag debris. Two triangular plates 218 are fixed to the side of the fixed block 21 facing the double-axis crushing knife 11, and the two triangular plates 218 are symmetrical with the outer cylinder 26 as the center, and the slide of the fixed block 21 is located between the two triangular plates 218, the triangular plate 218 at the top of the fixed block 21 is inclined upward, and the triangular plate 218 at the bottom of the fixed block 21 is inclined downward.

[0042] Since the initial position of the circular shell 27 is located at the gap between the two axial blades of the double-axis crushing knife 11, the two double-axis crushing knives 11 are turned on to rotate to crush the plastic packaging bag. The reciprocating sliding groove has a head end and a tail end. The initial position of the sliding ring 24 is located at the head end of the reciprocating sliding groove. When the radial blades of the double-axis crushing knife 11 pass over the circular shell 27, the rotating shaft 22 in a rotating state will drive the sliding ring 24 to slide on the connected reciprocating sliding groove. At this time, the sliding ring 24 slides from the head end of the reciprocating sliding groove to its tail end, and the sliding ring 24 drives the support plate 25 to slide inside the fixed block 21, and the support plate 25 drives the outer cylinder 26 to slide inside the slideway, and the outer cylinder 26 drives the circular shell 27 to slide toward the double-axis crushing knife. At the gap between the next adjacent blades in the axial direction of the crushing knife 11, the circular shell 27 can push the debris at the adjacent blade angle. When the sliding ring 24 slides, the second toothed ring 216 of the limiting shaft 212 is meshed and connected with the second rack 217, which will drive the limiting shaft 212 to rotate. The extrusion block 213 of the limiting shaft 212 will squeeze the pushing block 210, and the pushing block 210 will drive the push column 29 to slide out of the circular hole, so that the push column 29 can scrape the debris at the blade angle, and when the first toothed ring 214 of the outer cylinder 26 is meshed and connected with the first rack 215, the outer cylinder 26 will rotate inside the circular hole, which can drive the circular shell 27 to swing, so that the circular shell 27 and the push column 29 can scrape the debris at the blade angle.

[0043] When the sliding ring 24 slides to the tail end of the connected reciprocating sliding groove, the circular shell 27 has passed the cleaned blade, and the extrusion block 213 of the limit shaft 212 also passes the push block 210, and the first return spring 211 drives the push block 210 to return, so that the push column 29 slides into the inside of the circular hole, and the circular shell 27 can push off the plastic packaging bag debris wrapped around the push column 29, and the plastic packaging bag on the surface will fall to the bottom end of the box body 10. As the double-axis crushing knife 11 rotates, the radial blade of the double-axis crushing knife 11 rotates to the upper blade and passes over the circular shell 27, and the rotating shaft 22 in the rotating state drives the sliding ring 24 to slide from the tail end of the reciprocating sliding groove to its head end. At this time, the sliding ring 24 slides When the sliding ring 24 slides to the head end of the reciprocating sliding groove, the extrusion block 213 is separated from the pushing block 210, and the first reset spring 211 drives the pushing column 29 to reset and slide to the inside of the circular shell 27 through the pushing block 210, and the circular shell 27 is also reset to the initial position, so that the debris at the blade angle can be cleaned, and the crushing performance of the blade of the double-axis crushing knife 11 is maintained.

[0044] refer to Figure 3 , Figure 4 , Figure 5 , Figure 6 and Fig. 9 As shown, the second crushing knife cleaning assembly 30 includes an inner ring 31 fixed on the outer wall of the fixed block 21, the outer wall of the inner ring 31 is slidably connected to the outer ring 32, the outer wall of the outer ring 32 is fixed with a plurality of cleaning strips 33, and the plurality of cleaning strips 33 are equidistant from each other, and are used to scrape off plastic packaging bag debris attached to between the two axial blades of the double-axis crushing knife 11, thereby maintaining the crushing performance of the double-axis crushing knife 11, two fixed plates 34 are fixed on the top of the fixed block 21, a driving shaft 36 is rotatably connected between the two fixed plates 34, an outer tooth ring 37 is fixed to the outer surface of the driving shaft 36, an inner tooth 35 is fixed to the inner wall of the outer ring 32, and the inner tooth 35 is meshingly connected with the outer tooth ring 37, and is used to drive the outer ring 32 to rotate, thereby cleaning the plastic packaging bag debris between the two adjacent axial blades of the double-axis crushing knife 11 through the cleaning strips 33.

[0045] Since the angle of the cleaning bar 33 is offset from the angle of the circular shell 27, and the driving shaft 36 rotates synchronously with the limiting shaft 212, and the position of the cleaning bar 33 is located in the gap between two adjacent blades, and the rotation direction of the outer ring 32 is opposite to the rotation direction of the adjacent double-axis crushing knife 11, when the circular shell 27 slides from the head end of the reciprocating sliding groove to its tail end and passes over the cleaned blade, the outer ring 32 in the rotating state drives the cleaning bar 33 to move to the gap between the axially adjacent blades of the double-axis crushing knife 11, and the cleaning bar 33 can scrape the plastic packaging bag debris in the gap between adjacent blades, and can also scrape some debris attached to the cleaning blade angle of the circular shell 27. As the double-axis crushing knife 11 rotates, the cleaning bar 33 on the outer ring 32 rotates in the opposite direction. At this time, the pulling degree of the cleaning bar 33 becomes larger, so that the debris attached to the two axially adjacent blades of the double-axis crushing knife 11 can be cleaned up. As the outer ring 32 rotates, the debris on the cleaning bar 33 is affected by the throwing force generated by the rotation of the outer ring 32, and will fall from the cleaning bar 33.

[0046] refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, a driving assembly is installed on the box body 10, which can drive the first crushing blade cleaning assembly 20 and the second crushing blade cleaning assembly 30 to clean the plastic packaging bag debris attached to the double-shaft crushing blade 11.

[0047] The driving assembly includes a protective shell 41 fixed on the outer wall of the box body 10, and a driving source 42 is installed on the protective shell 41. The inner wall of the protective shell 41 is rotatably connected to two first gear shafts 43 and a third gear shaft 47. One end of the two first gear shafts 43 passes through the box body 10 and is fixed on one end of the corresponding double-axis crushing knife 11. The first gear shaft 43 is used to drive the double-axis crushing knife 11 to rotate, thereby crushing the plastic packaging bag. A second gear shaft 44 is arranged between the two first gear shafts 43, and the output end of the driving source 42 passes through the protective shell 41 and is fixed to one end of the second gear shaft 44. One end of the second gear shaft 44 is rotatably connected to the outer wall of the box body 10. A first transmission belt 45 is installed between one of the first gear shafts 43 and the second gear shaft 44, a transmission tooth 46 is installed on the outer surface of the first transmission belt 45, and the other first gear shaft 43 is meshed with the transmission tooth 46, one end of the two third gear shafts 47 passes through the box body 10 and the fixed block 21 and is fixed to one end of the corresponding rotating shaft 22, a second synchronous belt 48 is fixed between the third gear shaft 47 and the adjacent first gear shaft 43, a third gear ring 49 is installed on the outer surface of the driving shaft 36, a fourth gear ring 410 is installed on the outer surface of the limiting shaft 212, and a third synchronous belt 411 is installed between the third gear ring 49 and the fourth gear ring 410.

[0048] The output end of the driving source 42 drives the second gear shaft 44 to rotate, and the second gear shaft 44 drives the connected first gear shaft 43 to rotate through the first transmission belt 45, and the first transmission belt 45 drives another first gear shaft 43 to rotate through the transmission teeth 46, thereby driving the connected double-shaft pulverizing blade 11 to rotate through the first gear shaft 43, so that the two double-shaft pulverizing blades 11 rotate in opposite directions, thereby crushing the plastic packaging bag, and the first gear shaft 43 drives the connected third gear shaft 47 to rotate through the second synchronous belt 48, thereby driving the rotating shaft 22 to rotate, so that the circular shell 27 and the push column 29 clean the debris attached to the blade angle. The third gear shaft 47 drives the driving shaft 36 to rotate through the third gear ring 49, the fourth gear ring 410 and the third synchronous belt 411, so that the cleaning strip 33 on the outer ring 32 cleans the debris attached to the gap between the two axially adjacent blades of the double-shaft pulverizing blade 11.

[0049] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0050] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A plastic packaging bag recycling device, comprising a box body (10) and a double-shaft pulverizing blade (11), characterized in that: A first pulverizing blade cleaning assembly (20) is installed inside the housing (10), and the first pulverizing blade cleaning assembly (20) comprises a fixed block (21) fixed on the inner wall of the housing (10), a slideway is provided on one side wall of the fixed block (21), an outer cylinder (26) is slidably connected inside the slideway, one end of the outer cylinder (26) is fixedly connected to a circular shell (27), a circular hole is provided on the circular shell (27), a push column (29) is slidably connected inside the circular hole, the outer cylinder (26) can slide back and forth along the slideway, and the outer cylinder (26) in the reciprocating sliding cooperates with the push column (29) to sequentially clean the plastic packaging bag debris attached to the radial blade of the double-axis pulverizing blade (11), and at the same time, the outer cylinder (26) can drive the circular shell (27) to swing, so as to clean the debris at the angle of the blade and throw off the debris attached to itself; The inner wall of the fixed block (21) is rotatably connected to a rotating shaft (22), a reciprocating sliding groove group (23) is provided on the rotating shaft (22), and the reciprocating sliding groove group (23) is composed of a plurality of reciprocating sliding grooves, and a sliding ring (24) is slidably connected to each of the plurality of reciprocating sliding grooves, a support plate (25) is slidably connected to the inner bottom wall of the fixed block (21), and the top of the support plate (25) is slidably connected to the inner top wall of the fixed block (21), a support arm is fixed between the support plate (25) and the sliding ring (24), a circular hole is provided in the middle of the support plate (25), and an outer cylinder (26) is rotatably connected to the inner wall of the circular hole; The inner wall of the outer cylinder (26) is rotatably connected to a limit shaft (212), and one end of the limit shaft (212) is rotatably connected to the inner wall of the circular shell (27); an extrusion block (213) is fixed to the outer surface of the limit shaft (212) for pushing the push column (29) through the push block (210); a first toothed ring (214) is fixed to the outer surface of the outer cylinder (26); a plurality of first racks (215) and a second rack (217) are fixed to the inner top wall of the fixed block (21); the first toothed ring (214) is meshingly connected with the first rack (215); the first toothed ring (214) cooperates with the first rack (215) to drive the outer cylinder (26) to rotate, thereby driving the circular shell (27) to swing, and scraping off debris at the blade angle of the double-axis crushing knife (11); A second chopping blade cleaning assembly (30), the second chopping blade cleaning assembly (30) being mounted on the housing (10) and being used to clean debris between two axially adjacent blades of the double-shaft chopping blade (11); The second crushing blade cleaning assembly (30) comprises an inner ring (31) fixed on the outer wall of the fixed block (21); the outer wall of the inner ring (31) is slidably connected to the outer ring (32); a plurality of cleaning strips (33) are fixed to the outer wall of the outer ring (32); and the plurality of cleaning strips (33) are equidistant from each other; two fixing plates (34) are fixed to the top of the fixed block (21); a driving shaft (36) is rotatably connected between the two fixing plates (34); an outer toothed ring (37) is fixed to the outer surface of the driving shaft (36); and inner teeth (35) are fixed to the inner wall of the outer ring (32); and the inner teeth (35) are meshingly connected to the outer toothed ring (37).

2. A plastic packaging bag recycling device according to claim 1, characterized in that: A push block (210) is fixed to one end of the push column (29), and a first return spring (211) is fixed between one side of the push block (210) and the inner wall of the circular shell (27).

3. A plastic packaging bag recycling device according to claim 2, characterized in that: A second toothed ring (216) is fixed to the outer surface of the limiting shaft (212), and the second rack (217) is meshedly connected with the second toothed ring (216). The second toothed ring (216) cooperates with the second rack (217) to drive the limiting shaft (212) to rotate, thereby facilitating the pushing column (29) to be pushed out of the circular shell (27) to scrape off plastic packaging bag debris.

4. A plastic packaging bag recycling device according to claim 3, characterized in that: Two triangular plates (218) are fixed on one side of the fixed block (21) facing the double-shaft chopping blade (11), and the two triangular plates (218) are symmetrical with the outer cylinder (26) as the center. The slideway of the fixed block (21) is located between the two triangular plates (218), the triangular plate (218) at the top end of the fixed block (21) has an inclined surface facing upward, and the triangular plate (218) at the bottom end of the fixed block (21) has an inclined surface facing downward.

5. A plastic packaging bag recycling device according to claim 4, characterized in that: The box body (10) is provided with a driving assembly capable of driving a first crushing blade cleaning assembly (20) and a second crushing blade cleaning assembly (30) to clean plastic packaging bag debris attached to the double-shaft crushing blade (11).

6. A plastic packaging bag recycling device according to claim 5, characterized in that: The driving assembly comprises a protective shell (41) fixed on the outer wall of the box body (10), a driving source (42) being mounted on the protective shell (41), and the inner wall of the protective shell (41) being rotatably connected to two first gear shafts (43) and a third gear shaft (47), one end of each of the two first gear shafts (43) passing through the box body (10) and being fixed on one end of a corresponding double-shaft pulverizing blade (11), the first gear shaft (43) being used to drive the double-shaft pulverizing blade (11) to rotate, thereby pulverizing the plastic packaging bag, and the two first gear shafts (47) being used to rotate the double-shaft pulverizing blade (11) and pulverizing the plastic packaging bag. A second gear shaft (44) is arranged between the first gear shaft (43), and the output end of the driving source (42) passes through the protective shell (41) and is fixed to one end of the second gear shaft (44), one end of the second gear shaft (44) is rotatably connected to the outer wall of the box body (10), a first transmission belt (45) is installed between one of the first gear shafts (43) and the second gear shaft (44), a transmission tooth (46) is installed on the outer surface of the first transmission belt (45), and the other first gear shaft (43) is meshedly connected with the transmission tooth (46).

7. A plastic packaging bag recycling device according to claim 6, characterized in that: One end of each of the two third gear shafts (47) passes through the housing (10) and the fixed block (21) and is fixed to one end of the corresponding rotating shaft (22); a second synchronous belt (48) is fixed between the third gear shaft (47) and the adjacent first gear shaft (43); a third gear ring (49) is installed on the outer surface of the driving shaft (36); a fourth gear ring (410) is installed on the outer surface of the limiting shaft (212); and a third synchronous belt (411) is installed between the third gear ring (49) and the fourth gear ring (410).

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